Device for screening frames



I. J. GOTTLIEB DEVICE FOR SCREENING FRAMES Feb. 19, 1963 2 Sheets-Sheet1 Filed March 15, 1960 HE'i INVENTOR.

Irving J. Gofflieb AT TORNEY Feb. 19, 1963 1. J. GOTTLIEB DEVICE FORSCREENING FRAMES 2 Sheets-Sheet 2 Filed March 15, 1960 FIG.2

INVENTOR. Irving J. Gorflieb ATTORNEY V num!!! 3,'77,907 Patented Feb.19, 1953 ice 3,077,907 DEVICE FGR SCREENENG FRAMES Irving .l. Gottlieb,6&3 Elmwood Ave, Bufialo, N.Y. Filed Mar. 15, 196i Ser.N0.15,103 11Claims. (Cl. 140109) This invention relates to a device for screeningframes, and more particularly concerns a device for assembling groovedscreen frames, with screening material and splines for retaining thescreening material within the frame grooves.

In the manufacture of screen windows, screen doors or other screenenclosures, highly skilled labor has been used to perform the necessarysuccessive operations of hand rolling the screen cloth into the groovesof the frame and then forcing the retaining spline into place. Suchoperations necessarily result in relatively high pro duction costs, andthe quality of the finished product varies with the relative skill ofthe worker.

Accordingly, one object of the invention is to provide an improveddevice adapted to perform a series of operations in predeterminedsequence, whereby screen cloth is rolled into the groove of a framewhile the cloth is tensioned and spline material is continuously fed andlocated to retain the cloth in said frame groove.

Another object of the invention is to provide an improved serialarrangement of rollers for a screen assembly device wherein each rollerperforms an independent operation, the rollers operating in acontinuously successive manner.

A further object of this invention is to provide a device including acompact roller assembly for successively (l) tensioning screen cloth toa taut condition over a grooved frame element, (2) pressing the clothinto the frame groove, and (3) feeding and inserting a spline to retainthe cloth in the grooved frame element, the assembly being selectivelymovable between operative and inoperative positions.

In the drawing:

FIGURE 1 is a side elevational View of the device em bodying theinvention and showing the portion on the left in lowered operativeposition, and the portion on the right, in raised inoperative position;

FIGURE 2 is an end view looking at one end of FIG- URE 1 and the rollerassembly in raised inoperative position;

FIGURE 3 is an end view looking at the other end of FIGURE 1 with partsin section and with the roller assembly shown in operative position; and

FIGURE 4 is a top plan view thereof.

Referring in detail to the drawing, the device embodying the inventionis generally indicated at it The same is adapted to be associated with atable top T which carries the usual rectangular screen frame S; forapplying screen cloth C thereto. The screen frame S includes elongatedelements B with the conventional screen cloth receiving groove G.Elements B may be extrusions of metal or rigid plastic and of desiredcross-section.

Table top T is provided with a guide bar 11 secured along an edgethereof, frame element B abutting said bar 11. Screen cloth C isunrolled over the frame S from a roll and roll support, not shown. Meansis provided for mounting device for longitudinal movement along the edgeof table top T to assemble said screen cloth with .said frame.

To this end an elongated guide rail 12 of right angle section has itshorizontal portion 13 secured to the underside of table top T, leavingits vertical portion 14 in depending, aligned relation With table edge15. A second elongated guide rail 16, also of right angle section, isar- 2 ranged with its vertical portion '17 in slightly spaced opposedrelation to member portion lid.

Rails 12 and 16 are held in spaced relation by suitable means not shown;with the horizontal portion 18 of member 16 elevated somewhat aboveportion 13 of member 12..

Device it) comprises an angular frame generally indicated at 19; thesame comprising a vertical wall 24) whose lower end passes between guiderails 12 and lo; and a horizontal wall 21 which overlies table top T. Apair of longitudinally spaced lower guide rollers 22 are mounted onsuitable spindles 23, projecting from the inner surface of the lower endof frame wall 20, said rollers 22 travelling along guide rail 12.Similarly, a pair of longitudinally spaced upper guide rollers 24 aremounted on spindles 25' projecting from the outer surface of frame Wall20, rollers 24 bearin on the portion 18 of guide rail 16. Thus, thedevice iii may be moved along the edge 15 of table top T with frame 19in true upright position.

On horizontal frame wall 21 there is mounted a roller assemblycomprising in longitudinally spaced successive relation, a screentensioning roller 26, a screen grooving roller 27 and a spline roller23. The rollers 26, 27 and 28 are arranged for independent resilientlybiased movement toward table top T by means of vertical spindles 29, 3t)and 31 respectively, which slidably pass through tubular bearing sleeves32, 33 and 34 respectively. The sleeves 32-34 include upper end portionswhich are of reduced outer diameter and threaded, the same passingthrough openings in frame wall 21 and secured in place by jam nuts 35.

The spindles 29, 30 and 31 have their lower ends threaded into openingsin yoke members 36 which rotatably carry the rollers 26, 27 and 28. Theupper ends of said spindles 29, 3t? and 311 project above their sleeves32, 33 and 34 and extend through a lift plate 37 overlying frame wall21. Nuts 38 on the threaded upper ends of spindles 29, 3t and 31 fix thesame on lift plate 37. Helical compression springs 39 are disposed aboutbearing sleeves 32, 33 and 34 with their upper ends abutting theunderside of frame wall 21. The lower end of springs 39 abut adjustmentnuts 4th threaded on a threaded portion of spindles 2%, 3i) and 31. Locknuts 41 secure the spindles 29, 3t) and 31 to said yoke members 36.

Rollers 2-7 and 23 are in longitudinal alignment and are kept parallelto frame portion 20 by guide blocks 42 secured to the inner face offrame portion 26, the outer vertical surfaces of said blocks abuttingthe yoke members 36 carrying rollers 27 and 28.

Roller 26 is angled with respect to rollers 2'7 and 28 and is held insuch angled position by a guide block 43, also extending from frameportion 20, but having a slanted outer vertical surface 44 abutting theyoke members 36 carrying said roller 26.

The entire roller assembly carried by frame 19 may be moved verticallybetween a lower operative position and an upper inoperative position bymeans of a pair of horizontally disposed cam rollers 45, eccentricallymounted on brackets as and 47 fixed to frame Wall 21 and up standingtherefrom. Rollers 4-5 are carried in shafts 48 journalled on brackets46 and 47, said shafts 48 including right angle handle portions 49disposed outwardly of frame wall 20. As cam rollers 45 bear against theunderside of lift plate 37, it will be apparent that handles 49 may beturned to raise or lower the roller assembly as a unit.

Means for feeding spline material SM to roller 28 is provided, the samecomprising a tubular member 5% in angle form. Member 5d passes through abracket 51 secured to frame 19, said member 59 having a flared inlet 3portion 52. The member 5b includes downwardly directed portion 53 whoseterminal end is disposed immediately adjacent a peripheral portion ofspline roller 23. The tubular portion 53 is held in place by a strapmember 54 affixed to a bracket 55 secured to frame portion 2i Anupstanding handle as is affixed to lift plate 37, to provide means formoving the device it) along guide rails 12 and 16.

It will be apparent, that with a screen frame S on table top T, with itsele rent B in abutting relation to guide bar 11, the roller assembly maybe raised to its inoperative position by swinging handles 4-9 to theirupper positions, as indicated in solid lines in FIGURE 2. The screencloth C is spread over frame S, in the usual manner. The handles 49 arethen turned to their downward position, as indicated in HGURE 3, causingthe roller assembly to move downwardly to its operative position. Thenuts 40 may be adjusted to regulate the downward pressure of theindividual rollers 26-4428.

Upon moving the device from left to right, as indicated by the arrow inFIGURE 1, roller as is operative to tension the screen cloth C smoothlyby reason of its angled position, thus keeping the cloth in a tautcondition.

Roller 27 is effective to continuously groove the edge portion of clothC and to locate the same in groove G in screen element B. Also, splinematerial SM, which may take the usual form of a synthetic resin strip,is fed through feed members 5% and 53 and pressed into place in groove Gby roller 23, thereby retaining the screen cloth C in place on screenframe S.

It will be apparent, that with device it), the screen cloth C may berapidly assembled with screen frame S,

the serial operations being smoothly and rapidly efiected, as the deviceis moved by handle as along guide rails 12 and 16.

As various changes might be made in the embodiment of the inventionherein shown without departing from the spirit thereof, it is understoodthat all matters herein shown or described shall be deemed illustrativeand not limiting except as set forth in the appended claims.

What is claimed is:

1. A device for applying screening to a grooved frame supported on atable, comprising a roller assembly including in successivelongitudinal, serial relation a screen tensioning roller, 21 screengrooving roller, and a spline applying roller; and spline feeding meansdisposed between said grooving and spline applying rollers; a framemember carrying said rollers and feeding means for simultaneousoperation and means for guiding the movement of said frame member alongsaid table to continuously and successively spread the screen in a tautcondition, groove and press the screening into the grooved portion ofsaid grooved frame and press spline material into said frame groove.

2, A device as in claim 1 wherein said roller assembly is mounted onsaid frame member for vertical movement between a lower operativeposition and an upper inoper-ative position, and means on said framemember engageable with said assembly for moving said assembly to saidpositions thereof.

3. A device as in claim 1 wherein said roller assembly further includesmeans for resiliently biasing each of said rollers toward said table.

4. A device for applying screening to a screen frame having groovedperipheral portions and supported on a table, comprising in combination,a right angle frame comprising a vertical wall and a horizontal wallextending from one end of said vertical wall guide roller means onopposite sides of said vertical Wall at the other end thereof forengaging edge portions of said table, a plurality of longitudinallyspaced spindles vertically mounted on the horizontal frame wall anddepending therefrom, a screen tensioning roller mounted on one spindlefor spreading screening over said screen frame, a spline roller mountedon a second spindle and a screen grooving d roller mounted on a spindlebetween said first and second spindles for pressing peripheral portionsof said spread screening into the grooved portions of said screen frame.

5. A combination as in claim 4, and further including means for slidablymounting said spindles on said hori zontal wall and means forresiliently biasing said spindles in a downward direction.

6. A combination as in claim 4, and further including tubular splineguiding means on said frame, said spline guiding means having a terminalportion located between said spline roller and said grooving roller andadjacent the periphery of said spline roller.

7. A device for applying screening to a screen frame having groovedperipheral portions and supported on a table, comprising in combination,an angle frame member having vertical and horizontal walls, guide rollermeans on the lower edge of said vertical frame wall for engaging an edgeof saidtable, a roller assembly mounted on and beneath said horizontalwall and including a plurality of rollers rotatable about horizontalaxes parallel to said horizontal wall, a first and second of saidrollers being disposed in longitudinal alignment and relatively close tosaid vertical wall, a third roller being located in a position furtherremoved from said vertical wall, said third roller being rotatable aboutan axis in angled relation to the axes of said first and second rollersfor tensioning said screening over said screen frame, said second rollerbeing operative to press peripheral portions of said tensioned screeninginto the grooved portions of said screen frame, and said first rollerbeing operative to apply spline material to retain said screening in thegrooved portion of said screen frame.

8; A device for applying screening to a screen frame having groovedperipheral portions and supported on a table, comprising in combination,a frame member, roller means on said frame member for guiding said framemember along edge portions of said table, a roller assembly carried bysaid frame, said roller assembly including a plurality of longitudinallyspaced rollers arranged for simultaneous rotation about the horizontalaxis thereof, one of said rollers being operative for tensioning saidscreening over said screen frame, a second of said rollers adjacent saidfirst roller for pressing portions of said screening into the groove ofsaid screen frame, and the third of said rollers adjacent said secondroller for applying spline material to retain said screening in thegrooved portion of said screen frame, means for independently andresiliently mounting each of said rollers on said frame for movementtowards said screen frame, and means for raising and lowering saidroller assembly relative to said frame member.

9. In combination with a fiat supporting surface carrying a groovedscreen frame, a device movable along an edge of said supporting surfacefor forcing screening material into the frame groove, said devicecomprising a frame, guide roller means on said frame engageable with anedge portion of said supporting surface for guiding the movement of theframe relative to said surface, a roller assembly mounted on said frame,said roller assembly comprising in longitudinal, serial succession ascreen tensioning roller, a screen grooving roller and a spline applyingroller, each of said rollers being rotatable about a horizontal axis,means for independently and resiliently mounting each of said lastmentioned rollers on said frame for biased movement toward said screenframe, means on said frame for feeding spline between said grooving andspline applying rollers to a point adjacent the periphery of said splineapplying roller, and means for positioning said tensioning roller inangled relation to the path of movement of said device.

10. A combination as in claim 9. wherein said frame includes ahorizontal wall and further including means for mounting said rollerassembly for movement relative to said frame, said last mentioned meanscomprising a movable horizontal lift plate disposed in opposed relationto said horizontal wall of the frame, means for securing each of saidrollers to said lift plate and means for raising and lowering said liftplate relative to said frame wall.

11. A combination as in claim 9 wherein said last mentioned meanscomprises a guide block secured to said frame, said guide blockincluding an angled abutment surface for positioning engagement withsaid tensioning roller.

References Cited in the file of this patent UNITED STATES PATENTSPeregrine Sept. 22, 190 3 Darlinton May 21, 1912 Eskilson Dec. 12, 1933MacFarlane May 29, 1934 Allen Sept. 4, 1956 Magill Oct. 14, 1958

1. A DEVICE FOR APPLYING SCREENING TO A GROOVED FRAME SUPPORTED ON ATABLE, COMPRISING A ROLLER ASSEMBLY INCLUDING IN SUCCESSIVELONGITUDINAL, SERIAL RELATION A SCREEN TENSIONING ROLLER, A SCREENGROOVING ROLLER, AND A SPLINE APPLYING ROLLER; AND SPLINE FEEDING MEANSDISPOSED BETWEEN SAID GROOVING AND SPLINE APPLYING ROLLERS; A FRAMEMEMBER CARRYING SAID ROLLERS AND FEEDING MEANS FOR SIMULTANEOUSOPERATION AND MEANS FOR GUIDING THE MOVEMENT OF SAID FRAME MEMBER ALONGSAID TABLE TO CONTINUOUSLY AND SUCCESSIVELY SPREAD THE SCREEN IN A TAUTCONDITION, GROOVE AND PRESS THE SCREENING INTO THE GROOVED PORTION OFSAID GROOVED FRAME AND PRESS SPLINE MATERIAL INTO SAID FRAME GROOVE.